In Nasdaq IPOs between 1997 and 2002, clients of the lead underwriter bought shares worth $35.36 billion on the first day of public trading but sold shares worth only $21.45 billion, leading to a net buy imbalance of $13.91 billion, or 8.79 percent of the shares issued. The strong net buying...

Using a unique data set of Nasdaq 100 stocks, we study the daily and intradaily trading patterns of individuals and institutions. Stocks in the top return performance decile are bought in net by institutions (and sold in net by individuals) on the following day 65.2 percent of the time as...

From 1997 to March 2000, as technology stocks rose more than five-fold, institutions bought more new technology supply than individuals. Among institutions, hedge funds were the most aggressive investors, but independent investment advisors and mutual funds (net of flows) actively invested the...